Ticker · CUSIP 256135203
Holders (tracked)
8
Combined shares
9,954,544
Combined value
$139.76M
Last close
—
Quarter
2025Q4
Tracked holders · last 8 quarters
+1 vs previous quarter over the last 8.
SEC event timeline
14 events
- Ken Griffin (Citadel Advisors) added2026-02-17+190,167 shares · 2025Q413F
- D.E. Shaw & Co. opened position2026-02-17+41,624 shares · 2025Q413F
- Izzy Englander (Millennium Mgmt) trimmed2026-02-17−505,207 shares · 2025Q413F
- AQR Capital Management added2026-02-17+123,952 shares · 2025Q413F
- Jeremy Grantham (GMO) trimmed2026-02-17−72,000 shares · 2025Q413F
- Renaissance Technologies trimmed2026-02-12−527,500 shares · 2025Q413F
- Ken Fisher (Fisher Asset Mgmt) trimmed2026-02-09−1,175,368 shares · 2025Q413F
- Izzy Englander (Millennium Mgmt) trimmed2025-11-14−973,136 shares · 2025Q313F
- AQR Capital Management trimmed2025-11-14−6,420 shares · 2025Q313F
- Wellington Management trimmed2025-11-14−579,625 shares · 2025Q313F
- Renaissance Technologies trimmed2025-11-13−230,500 shares · 2025Q313F
- Jeremy Grantham (GMO) added2025-11-13+187,600 shares · 2025Q313F
- Ken Fisher (Fisher Asset Mgmt) trimmed2025-11-12−338,104 shares · 2025Q313F
- Norges Bank (Norway SWF) exited2025-11-12−73,800 shares · 2024Q313F
Insider activity
No insider transactions in the last 30 days.
Who moved on this name in 2025Q4
13F transactions reported for the latest quarter, grouped by direction.
New positions1
- D.E. Shaw & Co.+41,624$584K
Added to2
- Ken Griffin (Citadel Advisors)+190,167$2.7M
- AQR Capital Management+123,952$1.7M
Trimmed4
- Ken Fisher (Fisher Asset Mgmt)−1,175,368$16.5M
- Renaissance Technologies−527,500$7.4M
- Izzy Englander (Millennium Mgmt)−505,207$7.1M
- Jeremy Grantham (GMO)−72,000$1.0M
Exited0
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Institutional ownership over time
Distinct super-investors holding this ticker · combined dollar value, by quarter.
| Quarter | Holders | Combined value |
|---|---|---|
| 2022Q1 | 9 | $260.7M |
| 2022Q2 | 8 | $231.0M |
| 2022Q3 | 8 | $195K |
| 2022Q4 | 11 | $113.9M |
| 2023Q1 | 11 | $167.4M |
| 2023Q2 | 11 | $199.0M |
| 2023Q3 | 10 | $240.7M |
| 2023Q4 | 11 | $265.1M |
| 2024Q1 | 11 | $243.2M |
| 2024Q2 | 11 | $377.8M |
| 2024Q3 | 9 | $245.0M |
| 2024Q4 | 8 | $250.5M |
| 2025Q1 | 10 | $233.4M |
| 2025Q2 | 7 | $207.2M |
| 2025Q3 | 7 | $166.1M |
| 2025Q4 | 8 | $139.8M |
Who owns RDY
8 super-investors · 2025Q4
Tracked stake
9.95M
shares
Combined value
$140M
% of shares outstanding
—
shares-out unknown
Quarter action mix
New1Added2Trim4Held1
| # | Manager | Shares | Value |
|---|---|---|---|
| 1 | Renaissance Technologies | 8.26M | $116M |
| 2 | Ken Fisher Fisher Asset Mgmt | 506.0K | $7M |
| 3 | Jeremy Grantham GMO | 344.2K | $5M |
| 4 | Ken Griffin Citadel Advisors | 324.4K | $5M |
| 5 | AQR Capital Management | 312.2K | $4M |
| 6 | Wellington Management | 120.2K | $2M |
| 7 | Izzy Englander Millennium Mgmt | 50.7K | $711K |
| 8 | D.E. Shaw & Co. | 41.6K | $584K |
Recent moves
20 transactions
- +123,952 · 2025Q4
- −72,000 · 2025Q4
- +41,624 · 2025Q4
- −505,207 · 2025Q4
- +190,167 · 2025Q4
- −527,500 · 2025Q4
- −1,175,368 · 2025Q4
- −579,625 · 2025Q3
- −973,136 · 2025Q3
- −6,420 · 2025Q3
- −230,500 · 2025Q3
- +187,600 · 2025Q3
- −338,104 · 2025Q3
- −73,800 · 2024Q3
- −32,476 · 2025Q2
- −2,815,005 · 2025Q2
- SOLDD.E. Shaw & Co.−18,210 · 2025Q2
- +51,809 · 2025Q2
- −329,502 · 2025Q2
- −522,987 · 2025Q2
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